664161872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{198613}}^1$

素因数の和:198651

約数の個数: 40

約数和(自身を含む): 1477688160

約数和(自身を除く): 813526288

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 198613, 397226, 794452, 1588904, 2184743, 3177808, 3773647, 4369486, 7547294, 8738972, 15094588, 17477944, 30189176, 34955888, 41510117, 60378352, 83020234, 166040468, 332080936, 664161872]

約数ペア:

[(1, 664161872), (2, 332080936), (4, 166040468), (8, 83020234), (11, 60378352), (16, 41510117), (19, 34955888), (22, 30189176), (38, 17477944), (44, 15094588), (76, 8738972), (88, 7547294), (152, 4369486), (176, 3773647), (209, 3177808), (304, 2184743), (418, 1588904), (836, 794452), (1672, 397226), (3344, 198613)]